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31924747050 = 23527231167839
BaseRepresentation
bin11101101110110111…
…001111101100101010
310001101220001011221220
4131232313033230222
51010340213401200
622355510042510
72210060605200
oct355667175452
9101356034856
1031924747050
11125a2761a79
12622b649436
13301a081991
14178bd15070
15c6cac44a0
hex76edcfb2a

31924747050 has 288 divisors, whose sum is σ = 95753871360. Its totient is φ = 7011043200.

The previous prime is 31924746989. The next prime is 31924747187. The reversal of 31924747050 is 5074742913.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31924746993 and 31924747011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 38050531 + ... + 38051369.

It is an arithmetic number, because the mean of its divisors is an integer number (332478720).

Almost surely, 231924747050 is an apocalyptic number.

31924747050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31924747050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47876935680).

31924747050 is an abundant number, since it is smaller than the sum of its proper divisors (63829124310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31924747050 is a wasteful number, since it uses less digits than its factorization.

31924747050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 31924747050 in words is "thirty-one billion, nine hundred twenty-four million, seven hundred forty-seven thousand, fifty".